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The Leica BLKARC is an autonomous laser scanning module for robots. It is designed to be integrated with robotic carriers to enable autonomous mobile laser scanning with minimal or no human intervention. Users can simply plan a scan path and set BLKARC off on its own to scan autonomously.

BLKARC combined with Boston Dynamics Spot robot creates a fast, simple, safe, and autonomous reality capture workflow. Together, they deliver fully autonomous and repeatable scan missions to capture 3D point clouds and panoramic imagery while Spot carries BLKARC through an environment.

BLKARC autonomous laser scanning

  • Performs scan missions autonomously with minimal user intervention
  • Easily mounts to Boston Dynamics Spot and integrates with its sensors
  • Improves robotic navigation while capturing 3D point clouds to create 3D digital twins
  • Captures both static and mobile scans during the same scan mission
  • Can repeat scan missions autonomously for up-to-date project progress and site changes
  • Uses GrandSLAM technology: LiDAR SLAM, Visual SLAM, and an IMU for reality capture and autonomous navigation through complex environments

With BLK ARC UI, an easy-to-use browser-based user interface, users can plan scan paths remotely using existing drawings or BIM models of your building, including large and complex spaces. This enables the user to save time and allow BLKARC to scan complex or hazardous environments while remaining in a safe location.

BLKARC user interface enables the user to:

  • Operate different sensors and robotic carriers
  • Create user profiles
  • Manage robot and scan settings
  • Control robot trajectory and the detail camera

The BLKARC user interface bridges the distance between the office and the field and enables uploads of offline missions planned in Leica Cyclone 3DR to the robot. Once the mission is complete, BLKARC user interface helps to direct the data either into our legacy software, Leica Cyclone, or to direct upload from the field to HxDR.


Housing: Black powder coated aluminum
Weight: 690g
Height: 183.6mm
Front to back: 92.5mm
Diameter: 80mm

Browser-based mission control user interface. Requires additional installation on a supported robotic carrier.
Communication: USB 3.0 and Wireless (BLKARC-UI connection)
Internal memory: 24 hours of scanning (compressed data) / 6 hours (uncompressed data)

Laser class: 1
(in accordance with IEC 60825-1)
Wavelength: 830nm
Field of view: 270° (vertical)/360° (horizontal)
Scan Range: Min. 0.5m – up to 25m
Point measurement rate: 420,000 pts/sec
High resolution camera: 12 Mpixel, 90° x 120°, rolling shutter
Panoramic vision system: 3-camera system, 4.8 Mpixel 360° x 135°, global shutter


The following specifications apply to mobile scanning mode only:
Range noise * **: +/-3mm
Accuracy indoor ***: +/-10mm

Robustness: Designed for indoor and outdoor use
Operation temperature: 0 to +40°C
Dust & humidity protection: IP54 (IEC 60529)

Data transfer: Wireless and USB 3.0
Desktop Software: Leica Cyclone REGISTER 360 and Cyclone REGISTER 360 (BLK Edition), HxDR cloud-based platform

All specifications are subject to change without notice. All accuracy specifications are one sigma unless otherwise noted.

* at 78% albedo

** environment dependent

*** controlled environment (scan duration 2 minutes)

Remote user operation
Plan and execute missions from a remote location, whether in the office or in the field, which also keeps you safe from hazardous areas.

Offline path planning
Create new missions and adjust existing missions for any environment using Leica Cyclone 3DR.

GrandSLAM technology
GrandSLAM combines LiDAR SLAM, Visual SLAM, and an IMU to enable fully autonomous scanning and robotic navigation.

Static and mobile scanning modes
BLK ARC can scan in static and mobile mode during the same scan mission and all scans of both types will be registered together during the mission.

LiDAR module protection
Included U-bar protects the BLKARC module when mounted to its robotic carrier.

Simple user interface
Control and manage your BLKARC from an easy-to-use, browser-based application: BLKARC UI.

Upload to HxDR
Upload BLKARC data directly from the module to HxDR, our cloud-based data storage, visualization, and collaboration platform.